A domestic Islamic threat is real, and the FBI is unprepared to fight it.
It shouldn't require the U.S. to have a French-style, internal-security service to neutralize the likes of Maj. Hasan. He combines all of the factors—especially his public ruminations about American villainy in the Middle East and his overriding sense of Muslim fraternity—that should have had him under surveillance by counterintelligence units. Add the outrageous fact that he was in email correspondence with Anwar al-Awlaqi, a pro-al Qaeda imam well-known to American intelligence, and it is hard not to conclude that the FBI is still incapable of counterterrorism against an Islamic target.
For the FBI, religion remains a much too sensitive subject, much more so than the threatening ideologies of yesteryear. Imagine if Maj. Hasan had been an officer during the Cold War, regularly expressing his sympathy for the Soviet Union and American criminality against the working man. Imagine him writing to a KGB front organization espousing socialist solidarity. The major would have been surrounded by counterintelligence officers.